Re: Substack in Context

[Taco Hoekwater <taco@elvenkind.com>]

Aditya Mahajan wrote:
> Hi,
> 
>   What is the context equivalent of latex's substack? How do I type the 
> following
> $$
> \sum_{\substack i \in P \\ j \in Q} a_{ij}
> $$

Where is that defined? LateX gives me and 'Undefined control sequence',
and with \usepackage{amsmath} I get no error, but not a stack either.

The definition from m-newmat is at least partly superceded by the
new core math definitions Hans added last week, so a new implementation
would be better.

Cheers,
Taco